Tread for a tire



FIG. 1 is a perspective view showing the tread for a tire which forms my new design;

FIG. 2 is a front elevational view thereof; and,

FIG. 3 is a right side elevational view, this view and the left side elevational view being mirror images.

The broken lines showing other parts of the tire in FIGS. 1 and 3 indicating unclaimed environment and forming no part of the claim. 

CLAIM The ornamental design for a tread for a tire, as shown and described. 